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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package jdk.graal.compiler.truffle.test;

import java.lang.reflect.Field;

import org.junit.Assert;

import com.oracle.truffle.api.impl.FrameWithoutBoxing;

public final class FrameAssertionsChecker {
    private static final boolean ASSERTIONS_ENABLED;

    private FrameAssertionsChecker() {
    }

    static {
        ASSERTIONS_ENABLED = getFrameAssertionsStatus();
    }

    public static boolean areFrameAssertionsEnabled() {
        return ASSERTIONS_ENABLED;
    }

    private static boolean getFrameAssertionsStatus() {
        Field assertionsEnabledField = null;
        for (Field f : FrameWithoutBoxing.class.getDeclaredFields()) {
            if (f.getName().equals("ASSERTIONS_ENABLED")) {
                assertionsEnabledField = f;
                break;
            }
        }
        Assert.assertNotNull(assertionsEnabledField);
        try {
            assertionsEnabledField.setAccessible(true);
            return ((boolean) assertionsEnabledField.get(null));
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }
}
